| Quercus edithiae | |
| Author | Skan 1901 Hooker's Icon. Pl. 27: t. 2661 |
| Synonyms | Cyclobalanopsis
edithiae (Skan) Schottky 1912 tephrosia Chun & W.C.Ko 1958 |
| Local names | hua
nan qing gang; |
| Range | China (Hainan,
Guangdong, Guangxi ), Vietnam; 400-1800 m ; |
| Growth habit | usually 9-10
m, but reaches 20 m; |
| Leaves | 7-15 x 3-6 cm;
coriaceous; elliptical to oblong-elliptic; apex caudate, obtuse; base
cuneate; crenate-denticulate in the apical 2/3; glabrous and shiny above;
at first reddish-brown pubescent, then mature leaves hairless beneath;
midrib flat above; 8-11 vein pairs raised beneath; tertiary veins evident
abaxially; petiole 2-3 cm, glabrous; |
| Flowers | female inflorescence 1-2 cm, bearing 2-3 flowers; |
| Fruits | acorn 4-4.5
cm long, 2-2.5 cm wide; pointed, ellipsoid to cylindrical-ellipsoid, tomentose;
singly or in pairs; enclosed 1/4 to 1/3 by cup; cup bowl-shaped, 1.5-1.7
cm long, 2.3 cm wide, 2-3 mm thick, tomentose both inside and outside,
with 6-8 concentric rings, margin denticulate except 2-3 basal rings that
are entire; scar 7 mm in diameter, slightly convex; stylopodium persistent,
puberulent; maturing in 1 year; |
|
Bark, twigs and |
twigs remotely angled, rusty tomentose becoming glabrous; 2-year-old branchlets with small scattered lenticels; bud ellipsoid to ovoid; stipules deciduous; |
| Hardiness zone, habitat | not
hardy; |
| Miscellaneous | --
A.Camus : tome 1, p. 196, n° 9; -- Flora of China n° 38; -- Sub-genus Cerris, Section Cyclobalanopsis; -- Section Semiserrata, sub-section Semiserratae (Menitsky). -- Threatened (IUCN Red List Category : EN). -- Similar to Q.semiserrata (but differs in having larger and thinner acorns, and leaves always obtuse); -- Written sometimes "edithae"; |
| Subspecies and varieties |
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| Pictures |
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